*Bugfix:We checked only one weight before
*Test with 100 random coefficient vectors now

[[Imported from SVN: r158]]
Also test Edge.*LocalFiniteElement classes

[[Imported from SVN: r159]]
Cosmetic change of Carsten's bugfix to make the loop structure match
the code of the actual basis functions.  Thanks, Carsten, for tests
and bugfix!

[[Imported from SVN: r160]]
*Catch exceptions
*Don't hide unstable monomial interpolation

[[Imported from SVN: r161]]